2 # For a description of the syntax of this configuration file,
3 # see Documentation/kbuild/kconfig-language.txt.
5 mainmenu "U-Boot $UBOOTVERSION Configuration"
9 option env="UBOOTVERSION"
13 option env="KCONFIG_OBJDIR"
18 string "Local version - append to U-Boot release"
21 Append an extra string to the end of your U-Boot version.
22 This will show up on your boot log, for example.
23 The string you set here will be appended after the contents of
24 any files with a filename matching localversion* in your
25 object and source tree, in that order. Your total string can
26 be a maximum of 64 characters.
28 config LOCALVERSION_AUTO
29 bool "Automatically append version information to the version string"
33 This will try to automatically determine if the current tree is a
34 release tree by looking for git tags that belong to the current
37 A string of the format -gxxxxxxxx will be added to the localversion
38 if a git-based tree is found. The string generated by this will be
39 appended after any matching localversion* files, and after the value
40 set in CONFIG_LOCALVERSION.
42 (The actual string used here is the first eight characters produced
43 by running the command:
45 $ git rev-parse --verify HEAD
47 which is done within the script "scripts/setlocalversion".)
49 config CC_OPTIMIZE_FOR_SIZE
50 bool "Optimize for size"
54 Enabling this option will pass "-Os" instead of "-O2" to gcc
55 resulting in a smaller U-Boot image.
57 This option is enabled by default for U-Boot.
60 bool "Enable malloc() pool before relocation"
63 Before relocation memory is very limited on many platforms. Still,
64 we can provide a small malloc() pool if needed. Driver model in
65 particular needs this to operate, so that it can allocate the
66 initial serial device and any others that are needed.
68 config SYS_MALLOC_F_LEN
69 hex "Size of malloc() pool before relocation"
70 depends on SYS_MALLOC_F
73 Before relocation memory is very limited on many platforms. Still,
74 we can provide a small malloc() pool if needed. Driver model in
75 particular needs this to operate, so that it can allocate the
76 initial serial device and any others that are needed.
79 bool "Configure standard U-Boot features (expert users)"
81 This option allows certain base U-Boot options and settings
82 to be disabled or tweaked. This is for specialized
83 environments which can tolerate a "non-standard" U-Boot.
84 Only use this if you really know what you are doing.
86 endmenu # General setup
92 depends on $KCONFIG_OBJDIR="spl" || $KCONFIG_OBJDIR="tpl"
97 depends on $KCONFIG_OBJDIR="tpl"
108 depends on SUPPORT_SPL
109 prompt "Enable SPL" if !SPL_BUILD
110 default y if SPL_BUILD
112 If you want to build SPL as well as the normal image, say Y.
116 depends on SPL && SUPPORT_TPL
117 prompt "Enable TPL" if !SPL_BUILD
118 default y if TPL_BUILD
121 If you want to build TPL as well as the normal image and SPL, say Y.
124 bool "Support Flattened Image Tree"
125 depends on !SPL_BUILD
127 This option allows to boot the new uImage structrure,
128 Flattened Image Tree. FIT is formally a FDT, which can include
129 images of various types (kernel, FDT blob, ramdisk, etc.)
130 in a single blob. To boot this new uImage structure,
131 pass the the address of the blob to the "bootm" command.
134 bool "Display verbose messages on FIT boot"
138 bool "Enable signature verification of FIT uImages"
143 This option enables signature verification of FIT uImages,
144 using a hash signed and verified using RSA.
145 See doc/uImage.FIT/signature.txt for more details.
147 config SYS_EXTRA_OPTIONS
148 string "Extra Options (DEPRECATED)"
149 depends on !SPL_BUILD
151 The old configuration infrastructure (= mkconfig + boards.cfg)
152 provided the extra options field. If you have something like
153 "HAS_BAR,BAZ=64", the optional options
155 #define CONFIG_BAZ 64
156 will be defined in include/config.h.
157 This option was prepared for the smooth migration from the old
158 configuration to Kconfig. Since this option will be removed sometime,
159 new boards should not use this option.
162 depends on SPARC || ARC
165 TODO: Move CONFIG_SYS_TEXT_BASE for all the architecture
169 int "CPU clock frequency"
171 TODO: Move CONFIG_SYS_CLK_FREQ for all the architecture
173 endmenu # Boot images
175 source "arch/Kconfig"
177 source "common/Kconfig"
183 source "drivers/Kconfig"
189 source "test/Kconfig"